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Biomedical subjects

B Eisenwort

Publications and source records attributed to B Eisenwort.

At least 19 recordsLinked to original sources
PubMed1998

[A new reading chart for simultaneous determination of reading vision and reading speed].

BACKGROUND: Reading acuity as well as reading speed are good predictors of everyday visual function. As visual acuity tests are poor predictors of the real-world function, performance-based tests, e.g., reading speed measurements, can be used for the determination of visual function. Thus, a German reading chart was developed in order to evaluate reading acuity as well as reading speed. METHODS: Print size is defined as the height of a lower case x and progresses logarithmically from one phrase to another (factor: 1.25). Reading acuity is determined in LogRAD (Reading Acuity Determination). 32 short German phrases were created, comparable concerning grammatical difficulty as well as in number (n = 14), length and position of words. The reading speed parameters measured with a stop-watch in 160 persons (aged: Phi = 21a +/- 3.8a) were calculated in words per minute (w/min). Out of the 32 phrases the 24 most similar ones were selected statistically and used for the reading charts (Radner Reading Charts). With these reading charts a reading acuity score (LogRAD-score) can be calculated considering reading errors in words of different length. Reading speed can be determined at the same time. Reading acuity (LogRAD-Score) was measured in 32 normal eyes of 16 students and compared to the angular visual acuity (LogMAR). RESULTS: The mean reading speed of the test persons was 211.8 +/- 34.1 w/min. 24 phrases fulfilled the test item criteria for the reading chart: mean +/- 0.25 x SD. The reliability analyses yielded an overall Cronbach's alpha coefficient of 0.98! The mean visual acuity measured in 32 eyes was -0.115 +/- 0.097 LogMAR and the mean reading acuity score was +0.026 +/- 0.091 LogRAD. The mean difference was +0.104 +/- 0.066 and the correlation between LogMAR and LogRAD was good (r = 0.59). CONCLUSIONS: With these reading charts it is for the first time possible to simultaneously determine reading acuity as well as reading speed in German. The high reliability of the 24 phrases and the high correlation between LogMAR and LogRAD leads us to expect a good reproducibility of the reading acuity evaluations. For the "Radner Reading Charts" we have shown that print size is the main reason for changes of reading speed.

Adolescent↗
PubMed1997

[ICD-10 diagnosis of specific speech and language development disorders].

Diagnostics of developmental speech- and language disorders is based primarily on the criteria severity of involvement and pattern. Regarding phonological disorders single word articulation tests are widely used because of efficiency considerations. However they are insufficient for ICD-10 diagnostics, because severity of involvement and pattern are influenced from the fact that children are spontaneously talking or giving single word responses. "Percentage of Consonants Correct (PCC)" and "Percentage of Consonants Correct for early, middle and late consonants" are described as an articulation competence metric, whereas "Natural Process Analysis" is proposed to describe the pattern of the disorder. Three case studies are used to outline the methods. Data show that "Percentage of Consonants Correct" is a good metric to index severity of involvement and "Natural Process Analysis" is a prerequisite to describe the pattern of the disorder.

Articulation Disorders↗
PubMed1994

The Vienna Cochlear Implant in patients with obliteration of the cochlea.

Twelve deaf patients with obliterated or ossified cochleas received the extracochlear version of the Vienna Cochlear Implant. Four patients, 1 of them a child, developed open speech comprehension. Obliteration of the cochlea could not always be predicted by conventional tomography of the temporal bone. Short duration of deafness, wide dynamic range, and good ability of time resolution (small temporal difference limen [TDL]) are predictors for good postoperative results. Obliteration or ossification of the cochlea per se is no contraindication to cochlear implantation.

Adult↗
PubMed1991

[Management of cochlear implants in children--methods and results].

Selection criteria, basic principles of auditory training, development of an auditory test battery for children and results of 15 children between 4 and 14 years are presented and discussed. To summarize, results range from acoustic attention to tones and sounds and recognition of environmental sounds to the use of supra-segmental and segmental features of speech. Some children are able to recognize words and phrases from a closed list. One of the children has postlingual deafness and has had also a very short duration of deafness before implantation. This child shows better results than the pre and perilingually deaf children. Because of the fact that the patient group is small and there are also many intervening variables like age, duration of deafness and use of two different test instruments, it is difficult to find a relationship between the results and all other variables. The auditory test battery for children, which consists of seven subtests, measuring acoustic orientation and auditory speech perception on different linguistic levels, is much more suitable for the evaluation of auditory performance for this age group than the auditory test battery for adults (Eisenwort and Burian 1988).

Adolescent↗
PubMed1990

[The cochlear implant and its psychosocial effects in 36 patients].

In a study on 36 cochlear implant patients questionnaires answered pre- and postsurgically were analyzed. One year after implantation patients demonstrated significant changes on some of the test items. Although results show that the patients accept their device, some of their wishes and hopes remain unsatisfied.

Adolescent↗
PubMed1989

[Experiences with the Vienna auditory prosthesis].

Open set speech comprehension can be achieved by intra- and extracochlear stimulation using an analog broadband signal. There is a tendency that intracochlear provided patients achieve better scores for open set speech comprehension than extracochlear implanted patients. Four prelingually deaf children acquired awareness of tones and sounds and some of them are able to use suprasegmental cues. After reimplantation, speech comprehension scores remain stable. For three patients scores even improve. Controls of the pure-tone audiograms demonstrate that extracochlear implants do not destroy residual hearing.

Adult↗
PubMed1989

Statistical procedure for the preoperative prediction of the result of cochlear implantation.

Predicting the result of a cochlear implant preoperatively continues to be the best way to prevent an unfavourable outcome. Data from 28 cases (subdivided into two groups by their results) formed the basis for discriminant analysis using different parameters. Allocation to the two groups was found to be satisfactory. Since a jack-knifed design was used, allocation was done on the basis of data material from cases not included in this programme's analysis. Data correlation was described by an equation from which the result can be predicted with adequate accuracy using language competence, duration of deafness on the operated side, speech discrimination and threshold of acoustical sensations on promontory electrostimulation. The equation is applicable to all patients, irrespective of whether their deafness is prelingual or postlingual. Since the patient material was enlarged by 19 additional cases, we were able to confirm that the formula enables a prognosis of sufficient quality.

Adolescent↗
PubMed1988

[Rehabilitation of cochlear implant patients].

Pre- and post-surgical treatment of cochlear implant patients is discussed. Before surgery training of lipreading ability, auditory training with conventional hearing aids and counselling should be offered. After surgery the main focus lies on auditory training with the cochlear implant; communication training in a group and counselling should be offered too.

Cochlear Implants↗
PubMed1988

[Predictability of the result following cochlear implantation].

The results of cochlear implantation of 28 patients were compared with theoretical prognosis based on a mathematical formula, consisting of: speech competence, duration of deafness in the ear to be operated on, speech comprehension for numbers and the threshold for electrical stimulation using a promontorial electrode. Since the evaluation of this formula, 19 further cases have been operated on, confirming the usefulness of this prognostic scheme.

Audiometry, Speech↗
PubMed1987

[Cochlear implant--current questions].

Basing on the results obtained with 63 patients stimulated via the extracochlear or intracochlear version of the Vienna Cochlea Implant the following topics are discussed: Extracochlear versus intracochlear stimulation. Cochlea Implants in small children. Preoperative signs regarding the final result. Ideas for evaluation of results. Extracochlear or intracochlear stimulation enables speech understanding in about one-half of the postlingual deaf patients but the extent of speech recognition is greater when intracochlearly stimulated. Long-term follow-up as well as our experience with patients who had to be reimplanted demonstrate that the implantation manoevre does not create clinically relevant signs of damage. After the experiences with cochlear implants in adults their use in small children was encouraged, the more so since electric stimulation of prelingual deaf adults does not mediate speech recognition. There seems to be a chance to achieve speech comprehension if electric stimulation starts very early. The age limit in our group is the end of the third year. Final results cannot be presented but it is very clear that acoustic orientation and verbalisation are created and enhanced by electric stimulation. With regard to the preoperative prognosis, three parameters (threshold, dynamic range and TDL) are valid, of which TDL seems to be of major importance. The evaluation of the results should follow the hierarchical organisation of the language and must consider the three main levels of speech organisation.

Auditory Threshold↗
PubMed1986

The Vienna cochlear implant program.

The cochlear implant program in Vienna has now gathered 160 patient years of experience with 25 patients who have received an extracochlear implant prosthesis and 31 patients who have received an intracochlear implant prosthesis. The sound processor avoids the transformation of speech into pulses and provides a processed analog broad-band stimulation signal. Approximately one half of the patients are prelingually deaf. The selection criteria include electrical promontory stimulation and acoustic and electrical brain-stem audiometry. The rehabilitation program consisting of counseling, communication training, and auditory training is considered an important part of the program. The results are assessed using the Vienna Auditory Test battery. Sixty per cent of the postlingually deafened patients achieve some open-set speech understanding without lip-reading. Sixty-five per cent of the users show a substantial improvement in aided speech understanding versus lip-reading alone.

Audiometry, Evoked Response↗
PubMedDate not supplied

[Language development disorders in childhood: nonverbal intelligence and language comprehension].

33 children with Specific Language Impairment (F 80, ICD 10) were randomly selected and their results regarding nonverbal intelligence, passive vocabulary and sentence comprehension were compared with data of 33 control children matched by age and sex. Although cognitive performance is average in both groups, significant differences regarding nonverbal intelligence are found. Whereas nonverbal intelligence is predictable from sentence comprehension to a high degree in den SLI-group, it is not predictable in the control group.

Austria↗
PubMedDate not supplied

[Verbal and nonverbal intelligence in children with language development disorders].

Difficulties in language acquisition seem to be serious, if there are additional problems like intellectual and/or emotional/social impairment, which are often reported [10]. These additional problems and the definition of specific language impairment as a developmental disorder, restricted to language acquisition seem to be contradictory [17]. Aim of that study is to look for specific language impaired children with similar cognitive abilities and though to investigate, if there are children without additional cognitive problems considering the definition of specific language impairment. 93 children, between 4;0 and 6;6 years old, were diagnostized as specific language impaired (ICD-10) and were assessed by the "Hannover Wechsler Intelligenztest für das Vorschulalter (HAWIVA)" [6] (german version of WPPSI). Cluster analysis showed, that 1/3 of the specific language impaired children presented no additional cognitive problems and 2/3 of them showed cognitive problems regarding nonverbal and verbal intelligence indeed. These additional cognitive problems indicate that there may be a more basic cognitive defect underlying specific language impairment [15]--at least for a group of specific language impaired children. Furthermore the nonverbal and verbal intellectual difficulties emphasize to general developmental support of specific language impaired children for optimal improvement in language acquisition.

Child↗